The iStarUSA 80 Plus series switching power supply supports latest motherboard connectors of 20, 24, 8, and 4 pins. Standard PS2 form factor fits most ATX or 4U chassis. The 80 Plus means that at least 80 percent efficiency at 20, 50, and 100 percent loads, which saves users on electric bills and less cooling requirement. iStarUSA 80 Plus series is the ideal power supply for high-end workstation.